MAX481E/MAX483E/MAX485E/
MAX487E–MAX491E/MAX1487E
±±15kV ESD-Potected,VElewDRateDLimited,
LowD-oweP,VRED481/RED422VTPansceivePs
R
1M
R 1500Ω
D
C
I 100%
P
90%
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
I
r
DISCHARGE
RESISTANCE
CHARGE CURRENT
LIMIT RESISTOR
AMPERES
HIGH
VOLTAGE
DC
DEVICE
UNDER
TEST
C
STORAGE
CAPACITOR
s
36.8%
100pF
SOURCE
10%
0
TIME
0
t
RL
t
DL
CURRENT WAVEFORM
Figure 4. Human Body ESꢂ Test Model
Figure 5. Human Body Model Current Waveform
I
100%
90%
R
50M to 100M
R 330Ω
D
C
DISCHARGE
RESISTANCE
CHARGE CURRENT
LIMIT RESISTOR
HIGH-
VOLTAGE
DC
DEVICE
UNDER
TEST
C
STORAGE
CAPACITOR
s
150pF
SOURCE
10%
t
t = 0.7ns to 1ns
r
30ns
60ns
Figure 6. IEC1000-4-2 ESꢂ Test Model
Figure 7. IEC1000-4-2 ESꢂ Generator Current Waveform
Y
1k
TEST POINT
R
RECEIVER
OUTPUT
V
CC
S1
S2
V
C
RL
OD
1k
15pF
R
V
OC
Z
Figure 8. ꢂriver ꢂC Test Load
Figure 9. Receiver Timing Test Load
10
Maxim Integrated
ROCHESTER [ Rochester Electronics ]
